# GutHarmony vs Postmarks

The clearest difference is price: Postmarks at Free against GutHarmony's $0.99. GutHarmony's advantage is in-app purchases (none vs 10) and update cadence (every 2 days vs weekly). On ads, device support and iOS requirement there is nothing between them.

Postmarks is free to download; GutHarmony costs $0.99 up front. Postmarks sells 10 one-off in-app purchases. GutHarmony asks for nothing beyond the download.

GutHarmony ships an update every 2 days, Postmarks weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | GutHarmony | Postmarks |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/postmarks-steps-and-stamps/id6761856446/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 236 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Midean Ismail](https://appshunter.io/developer/1877104465) | [Yutaro Sakairi](https://appshunter.io/developer/1891796629) |

## What reviewers say

### GutHarmony

[App page](https://appshunter.io/ios/app/gutharmony/id6760734925)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Postmarks

[App page](https://appshunter.io/ios/app/postmarks-steps-and-stamps/id6761856446)

This app transforms daily steps into a journey across real-world locations, rewarding users with collectible stamps and a personal travel passport. It encourages consistent walking by providing a destination and purpose for each outing, turning movement into a meaningful adventure.

**Highlights:** Virtual travel across real cities, Collectible vintage postage stamps, Personalized travel passport, Automated daily journal entries, Habit building through gamification, Unlockable 'After Dark' stamp collections

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kintsugi Token | $0.99 | one-time |
| Korea & Taiwan Pack — Day | $3.99 | one-time |
| Japan Explorer Pack — Day | $5.99 | one-time |
| Northern Japan Pack — Day | $5.99 | one-time |
| Korea & Taiwan Pack — Day & Night | $5.99 | one-time |
| Japan Explorer Pack — Day & Night | $7.99 | one-time |
| Northern Japan Pack — Day & Night | $7.99 | one-time |
| Postmarks: Japan | $9.99 | one-time |
| Lifetime All-Access | $24.99 | one-time |
| Lifetime All-Access Promotion Only | $24.99 | one-time |


## Frequently asked questions

### Is GutHarmony free?

GutHarmony costs $0.99, with no in-app purchases.

### Is Postmarks free?

Postmarks is free to download, with in-app purchases available.

### Do GutHarmony or Postmarks have ads?

Neither GutHarmony nor Postmarks shows ads.

### Which is updated more often, GutHarmony or Postmarks?

GutHarmony ships an update every 2 days, and Postmarks weekly. Most recently, GutHarmony was updated on October 31, 2026 and Postmarks on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*